Astronomy and Astrophysics – Astronomy
Scientific paper
Sep 1984
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984apj...284..578l&link_type=abstract
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 284, Sept. 15, 1984, p. 578-588.
Astronomy and Astrophysics
Astronomy
44
Abundance, Hydrocarbons, Interstellar Matter, Molecular Spectra, Ultraviolet Astronomy, Line Spectra, Near Ultraviolet Radiation, Oscillator Strengths, Radio Sources (Astronomy)
Scientific paper
An analysis of historic interstellar CH abundance and electronic state data for the interstellar medium was undertaken to identify the term structures of various electronic states and to identify errors in previous analyses. Attention was devoted to the X(2)Pi, A(2)Delta, B(2)Sigma(-), and C(2)Sigma(+) systems. Error sources were identified as neglect of the Lambda doubling of ground state. The splitting causes a doubling of the oscillator strength of lines from the B-X and C-X electronic systems, blending of two lines appearing as 4300, 3886, and 3143 A lines, the inaccurate identification of which half of the Lambda doublet generated the lines, and no accurate determination of the excitation temperature. Examples are furnished of CH Lambda ground state data from Delta Per, Delta Oph, X Per, and Chi Oph using equivalent widths to show an inverted Lambda doublet, that a radio maser can be detected optically, and a match between the X Per and Delta Per theoretical and measured temperatures.
No associations
LandOfFree
A reanalysis of the interstellar CH abundance does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with A reanalysis of the interstellar CH abundance, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A reanalysis of the interstellar CH abundance will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1390495